Headlamp



FIG. 1 is a perspective view of a headlamp in accordance with the design, as coupled to head coupling apparatus, the head coupling apparatus in broken lines is shown for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for a headlamp, as shown and described. 